{"id":104057,"date":"2026-05-22T19:55:04","date_gmt":"2026-05-22T12:55:04","guid":{"rendered":"https:\/\/tiki.vn\/blog\/?p=104057"},"modified":"2026-05-22T19:55:04","modified_gmt":"2026-05-22T12:55:04","slug":"cach-bam-may-tinh-dao-ham","status":"publish","type":"post","link":"https:\/\/tiki.vn\/blog\/cach-bam-may-tinh-dao-ham\/","title":{"rendered":"C\u00e1ch b\u1ea5m m\u00e1y t\u00ednh \u0111\u1ea1o h\u00e0m Casio v\u00e0 Vinacal chi ti\u1ebft nh\u1ea5t"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">G\u1eb7p kh\u00f3 kh\u0103n khi t\u00ednh \u0111\u1ea1o h\u00e0m b\u1eb1ng tay ho\u1eb7c mu\u1ed1n ki\u1ec3m tra k\u1ebft qu\u1ea3 th\u1eadt nhanh trong gi\u1edd ki\u1ec3m tra? N\u1eafm v\u1eefng th\u1ee7 thu\u1eadt b\u1ea5m m\u00e1y t\u00ednh \u0111\u1ea1o h\u00e0m kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m th\u1eddi gian qu\u00fd gi\u00e1 m\u00e0 c\u00f2n t\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c khi gi\u1ea3i c\u00e1c b\u00e0i to\u00e1n tr\u1eafc nghi\u1ec7m. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n chi ti\u1ebft t\u1eebng b\u01b0\u1edbc t\u00ednh \u0111\u1ea1o h\u00e0m tr\u00ean c\u00e1c d\u00f2ng m\u00e1y t\u00ednh <\/span><b>Casio<\/b><span style=\"font-weight: 400;\"> v\u00e0 <\/span><b>Vinacal<\/b><span style=\"font-weight: 400;\"> ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay.<\/span><\/p>\n<h2><b><i>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh<\/i><\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><i><span style=\"font-weight: 400;\">Th\u00e0nh th\u1ea1o b\u1ea5m m\u00e1y t\u00ednh \u0111\u1ea1o h\u00e0m l\u00e0 k\u1ef9 n\u0103ng quan tr\u1ecdng gi\u00fap ti\u1ebft ki\u1ec7m th\u1eddi gian, t\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c khi l\u00e0m b\u00e0i thi tr\u1eafc nghi\u1ec7m.<\/span><\/i><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><i><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng ph\u00edm SHIFT + \u222b\u25a1dx tr\u00ean Casio v\u00e0 Vinacal \u0111\u1ec3 t\u00ednh nhanh \u0111\u1ea1o h\u00e0m c\u1ea5p 1 t\u1ea1i m\u1ed9t \u0111i\u1ec3m c\u1ee5 th\u1ec3 (f'(x\u2080)).<\/span><\/i><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><i><span style=\"font-weight: 400;\">\u00c1p d\u1ee5ng m\u1eb9o l\u1ed3ng hai l\u1ea7n c\u00fa ph\u00e1p \u0111\u1ea1o h\u00e0m \u0111\u1ec3 t\u00ednh gi\u00e1 tr\u1ecb g\u1ea7n \u0111\u00fang c\u1ee7a \u0111\u1ea1o h\u00e0m c\u1ea5p 2 (f\u201d(x)) ngay tr\u00ean m\u00e1y t\u00ednh.<\/span><\/i><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><i><span style=\"font-weight: 400;\">\u1ee8ng d\u1ee5ng gi\u1ea3i nhanh b\u00e0i to\u00e1n t\u00ecm h\u1ec7 s\u1ed1 g\u00f3c ti\u1ebfp tuy\u1ebfn, x\u00e9t t\u00ednh \u0111\u01a1n \u0111i\u1ec7u hay t\u00ecm \u0111i\u1ec3m c\u1ef1c tr\u1ecb c\u1ee7a h\u00e0m s\u1ed1.<\/span><\/i><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><i><span style=\"font-weight: 400;\">Lu\u00f4n chuy\u1ec3n m\u00e1y t\u00ednh sang \u0111\u01a1n v\u1ecb Radian khi t\u00ednh \u0111\u1ea1o h\u00e0m c\u00e1c h\u00e0m s\u1ed1 l\u01b0\u1ee3ng gi\u00e1c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c.<\/span><\/i><\/li>\n<\/ul>\n<h2><b>1. L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c th\u00e0nh th\u1ea1o b\u1ea5m m\u00e1y t\u00ednh \u0111\u1ea1o h\u00e0m<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">K\u1ef9 n\u0103ng s\u1eed d\u1ee5ng m\u00e1y t\u00ednh c\u1ea7m tay \u0111\u1ec3 t\u00ednh \u0111\u1ea1o h\u00e0m l\u00e0 m\u1ed9t l\u1ee3i th\u1ebf c\u1ef1c l\u1edbn trong h\u1ecdc t\u1eadp v\u00e0 thi c\u1eed, \u0111\u1eb7c bi\u1ec7t v\u1edbi h\u00ecnh th\u1ee9c thi tr\u1eafc nghi\u1ec7m hi\u1ec7n h\u00e0nh. Vi\u1ec7c n\u00e0y gi\u00fap b\u1ea1n r\u00fat ng\u1eafn \u0111\u00e1ng k\u1ec3 th\u1eddi gian gi\u1ea3i c\u00e1c b\u00e0i to\u00e1n y\u00eau c\u1ea7u t\u00ednh gi\u00e1 tr\u1ecb \u0111\u1ea1o h\u00e0m t\u1ea1i m\u1ed9t \u0111i\u1ec3m c\u1ee5 th\u1ec3, m\u1ed9t d\u1ea1ng b\u00e0i r\u1ea5t th\u01b0\u1eddng g\u1eb7p.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ti\u1ebft ki\u1ec7m th\u1eddi gian:<\/b><span style=\"font-weight: 400;\"> Thay v\u00ec t\u00ednh to\u00e1n th\u1ee7 c\u00f4ng ph\u1ee9c t\u1ea1p, m\u00e1y t\u00ednh cho ra k\u1ebft qu\u1ea3 ch\u1ec9 sau v\u00e0i gi\u00e2y, gi\u00fap b\u1ea1n d\u00e0nh th\u1eddi gian cho c\u00e1c c\u00e2u h\u1ecfi kh\u00f3 h\u01a1n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c:<\/b><span style=\"font-weight: 400;\"> Thao t\u00e1c tr\u00ean m\u00e1y gi\u00fap h\u1ea1n ch\u1ebf t\u1ed1i \u0111a c\u00e1c sai s\u00f3t trong t\u00ednh to\u00e1n, \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 so s\u00e1nh ho\u1eb7c ch\u1ecdn \u0111\u00e1p \u00e1n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ki\u1ec3m tra k\u1ebft qu\u1ea3 nhanh:<\/b><span style=\"font-weight: 400;\"> Sau khi gi\u1ea3i tay, b\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng m\u00e1y t\u00ednh \u0111\u1ec3 x\u00e1c th\u1ef1c l\u1ea1i \u0111\u00e1p \u00e1n, t\u0103ng s\u1ef1 t\u1ef1 tin tr\u01b0\u1edbc khi n\u1ed9p b\u00e0i.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>H\u1ed7 tr\u1ee3 gi\u1ea3i to\u00e1n \u1ee9ng d\u1ee5ng:<\/b><span style=\"font-weight: 400;\"> N\u1eafm v\u1eefng thao t\u00e1c n\u00e0y l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 gi\u1ea3i quy\u1ebft nhanh c\u00e1c b\u00e0i to\u00e1n v\u1ec1 ph\u01b0\u01a1ng tr\u00ecnh ti\u1ebfp tuy\u1ebfn, t\u00ednh \u0111\u01a1n \u0111i\u1ec7u hay t\u00ecm c\u1ef1c tr\u1ecb h\u00e0m s\u1ed1.<\/span><\/li>\n<\/ul>\n<h2><b>2. H\u01b0\u1edbng d\u1eabn c\u00e1ch b\u1ea5m m\u00e1y t\u00ednh \u0111\u1ea1o h\u00e0m chi ti\u1ebft<\/b><\/h2>\n<h3><b>2.1. C\u00e1ch b\u1ea5m \u0111\u1ea1o h\u00e0m c\u1ea5p 1 (t\u00ednh \u0111\u1ea1o h\u00e0m t\u1ea1i m\u1ed9t \u0111i\u1ec3m)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u00e2y l\u00e0 ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng th\u01b0\u1eddng xuy\u00ean nh\u1ea5t \u0111\u1ec3 t\u00ecm gi\u00e1 tr\u1ecb c\u1ee7a \u0111\u1ea1o h\u00e0m f'(x\u2080) t\u1ea1i m\u1ed9t \u0111i\u1ec3m x\u00e1c \u0111\u1ecbnh. Ch\u1ee9c n\u0103ng n\u00e0y gi\u00fap gi\u1ea3i quy\u1ebft nhanh c\u00e1c y\u00eau c\u1ea7u t\u00ednh to\u00e1n c\u1ee5 th\u1ec3 trong \u0111\u1ec1 b\u00e0i, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m y\u00eau c\u1ea7u t\u00ecm h\u1ec7 s\u1ed1 g\u00f3c c\u1ee7a ti\u1ebfp tuy\u1ebfn.<\/span><\/p>\n<h4><b>2.1.1. Tr\u00ean m\u00e1y t\u00ednh Casio fx-580VN X<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">\u0110\u00e2y l\u00e0 d\u00f2ng m\u00e1y t\u00ednh qu\u1ed1c d\u00e2n v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t. Thao t\u00e1c t\u00ednh \u0111\u1ea1o h\u00e0m tr\u00ean <\/span><a href=\"https:\/\/tiki.vn\/may-tinh-casio-fx580vn-x-p104769768.html\"><span style=\"font-weight: 400;\">Casio fx-580VN X<\/span><\/a><span style=\"font-weight: 400;\"> r\u1ea5t tr\u1ef1c quan v\u00e0 nhanh ch\u00f3ng.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 1:<\/b><span style=\"font-weight: 400;\"> B\u1ea5m t\u1ed5 h\u1ee3p ph\u00edm <\/span><b>SHIFT<\/b><span style=\"font-weight: 400;\"> (ph\u00edm ch\u1ee9c n\u0103ng ph\u1ee5 m\u00e0u v\u00e0ng \u1edf g\u00f3c tr\u00ean b\u00ean tr\u00e1i) v\u00e0 ph\u00edm <\/span><b>t\u00edch ph\u00e2n \u222b\u25a1dx<\/b><span style=\"font-weight: 400;\"> (n\u1eb1m ngay d\u01b0\u1edbi ph\u00edm CALC) \u0111\u1ec3 hi\u1ec3n th\u1ecb c\u00fa ph\u00e1p d\/dx(\u25a1)|x=\u25a1 tr\u00ean m\u00e0n h\u00ecnh.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 2:<\/b><span style=\"font-weight: 400;\"> Nh\u1eadp h\u00e0m s\u1ed1 f(x) c\u1ea7n t\u00ednh \u0111\u1ea1o h\u00e0m v\u00e0o bi\u1ec3u th\u1ee9c trong d\u1ea5u ngo\u1eb7c. \u0110\u1ec3 nh\u1eadp bi\u1ebfn X, b\u1ea1n s\u1eed d\u1ee5ng ph\u00edm <\/span><b>ALPHA<\/b><span style=\"font-weight: 400;\"> (ph\u00edm ch\u1ee9c n\u0103ng ph\u1ee5 m\u00e0u \u0111\u1ecf) v\u00e0 ph\u00edm <\/span><b>)<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 3:<\/b><span style=\"font-weight: 400;\"> S\u1eed d\u1ee5ng c\u00e1c ph\u00edm \u0111i\u1ec1u h\u01b0\u1edbng (ph\u00edm tr\u00f2n l\u1edbn \u1edf gi\u1eefa) \u0111\u1ec3 di chuy\u1ec3n con tr\u1ecf \u0111\u1ebfn v\u1ecb tr\u00ed x=\u25a1 v\u00e0 nh\u1eadp gi\u00e1 tr\u1ecb x\u2080 m\u00e0 b\u1ea1n c\u1ea7n t\u00ednh \u0111\u1ea1o h\u00e0m.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 4:<\/b><span style=\"font-weight: 400;\"> B\u1ea5m ph\u00edm <\/span><b>=<\/b><span style=\"font-weight: 400;\"> (ph\u00edm l\u1edbn \u1edf g\u00f3c d\u01b0\u1edbi b\u00ean ph\u1ea3i) \u0111\u1ec3 m\u00e1y t\u00ednh th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh v\u00e0 hi\u1ec3n th\u1ecb k\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng.<\/span><\/li>\n<\/ul>\n<h4><b>2.1.2. Tr\u00ean m\u00e1y t\u00ednh Casio fx-880BTG<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">D\u00f2ng m\u00e1y <\/span><a href=\"https:\/\/tiki.vn\/may-tinh-casio-fx-880btg-mau-xam-p195357782.html\"><span style=\"font-weight: 400;\">Casio fx-880BTG<\/span><\/a><span style=\"font-weight: 400;\"> c\u00f3 giao di\u1ec7n hi\u1ec7n \u0111\u1ea1i v\u00e0 h\u1ed7 tr\u1ee3 Ti\u1ebfng Vi\u1ec7t, gi\u00fap thao t\u00e1c d\u1ec5 d\u00e0ng h\u01a1n cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 1:<\/b><span style=\"font-weight: 400;\"> B\u1ea5m ph\u00edm <\/span><b>CATALOG<\/b><span style=\"font-weight: 400;\"> tr\u00ean b\u00e0n ph\u00edm, m\u1ed9t danh s\u00e1ch c\u00e1c ch\u1ee9c n\u0103ng s\u1ebd hi\u1ec7n ra \u0111\u1ec3 b\u1ea1n l\u1ef1a ch\u1ecdn.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 2:<\/b><span style=\"font-weight: 400;\"> D\u00f9ng ph\u00edm \u0111i\u1ec1u h\u01b0\u1edbng ch\u1ecdn m\u1ee5c <\/span><b>Ph\u00e2n t\u00edch h\u00e0m (Func Analysis)<\/b><span style=\"font-weight: 400;\"> v\u00e0 nh\u1ea5n <\/span><b>OK<\/b><span style=\"font-weight: 400;\">, sau \u0111\u00f3 ti\u1ebfp t\u1ee5c ch\u1ecdn <\/span><b>d\/dx (Derivative)<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 3:<\/b><span style=\"font-weight: 400;\"> M\u00e0n h\u00ecnh s\u1ebd hi\u1ec3n th\u1ecb giao di\u1ec7n nh\u1eadp li\u1ec7u r\u1ea5t r\u00f5 r\u00e0ng. B\u1ea1n nh\u1eadp h\u00e0m s\u1ed1 f(x) v\u00e0o \u00f4 \u0111\u1ea7u ti\u00ean, nh\u1eadp bi\u1ebfn s\u1ed1 (th\u01b0\u1eddng l\u00e0 x) v\u00e0o \u00f4 th\u1ee9 hai, v\u00e0 nh\u1eadp gi\u00e1 tr\u1ecb x\u2080 c\u1ea7n t\u00ednh \u0111\u1ea1o h\u00e0m v\u00e0o \u00f4 th\u1ee9 ba.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 4:<\/b><span style=\"font-weight: 400;\"> B\u1ea5m ph\u00edm <\/span><b>EXE<\/b><span style=\"font-weight: 400;\"> (t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ph\u00edm =) \u0111\u1ec3 m\u00e1y t\u00ednh x\u1eed l\u00fd v\u00e0 tr\u1ea3 v\u1ec1 k\u1ebft qu\u1ea3 \u0111\u1ea1o h\u00e0m t\u1ea1i \u0111i\u1ec3m \u0111\u00f3.<\/span><\/li>\n<\/ul>\n<h4><b>2.1.3. Tr\u00ean m\u00e1y t\u00ednh Vinacal 680EX Plus<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">M\u00e1y t\u00ednh <\/span><a href=\"https:\/\/tiki.vn\/may-tinh-casio-fx-880btg-mau-xam-p195357782.html\"><span style=\"font-weight: 400;\">Vinacal 680EX Plus <\/span><\/a><span style=\"font-weight: 400;\">c\u0169ng l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn m\u1ea1nh m\u1ebd v\u00e0 quen thu\u1ed9c v\u1edbi nhi\u1ec1u h\u1ecdc sinh, sinh vi\u00ean. C\u00e1ch b\u1ea5m \u0111\u1ea1o h\u00e0m tr\u00ean d\u00f2ng m\u00e1y n\u00e0y g\u1ea7n nh\u01b0 t\u01b0\u01a1ng t\u1ef1 v\u1edbi Casio fx-580VN X.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 1:<\/b><span style=\"font-weight: 400;\"> B\u1ea5m t\u1ed5 h\u1ee3p ph\u00edm <\/span><b>SHIFT<\/b><span style=\"font-weight: 400;\"> v\u00e0 ph\u00edm <\/span><b>\u222b(d\/dx)<\/b><span style=\"font-weight: 400;\"> \u0111\u1ec3 g\u1ecdi ch\u1ee9c n\u0103ng t\u00ednh \u0111\u1ea1o h\u00e0m t\u1ea1i m\u1ed9t \u0111i\u1ec3m.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 2:<\/b><span style=\"font-weight: 400;\"> Giao di\u1ec7n hi\u1ec3n th\u1ecb c\u00fa ph\u00e1p d\/dx(\u25a1)|x=\u25a1 s\u1ebd xu\u1ea5t hi\u1ec7n. B\u1ea1n ch\u1ec9 c\u1ea7n nh\u1eadp h\u00e0m s\u1ed1 f(x) v\u00e0o \u00f4 trong ngo\u1eb7c v\u00e0 gi\u00e1 tr\u1ecb x\u2080 t\u01b0\u01a1ng \u1ee9ng v\u00e0o \u00f4 b\u00ean ph\u1ea3i.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 3:<\/b><span style=\"font-weight: 400;\"> Nh\u1ea5n ph\u00edm <\/span><b>=<\/b><span style=\"font-weight: 400;\"> \u0111\u1ec3 nh\u1eadn k\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng. Thao t\u00e1c \u0111\u01a1n gi\u1ea3n gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 t\u1eadp trung v\u00e0o c\u00e1c b\u01b0\u1edbc gi\u1ea3i to\u00e1n ph\u1ee9c t\u1ea1p h\u01a1n.<\/span><\/li>\n<\/ul>\n<h3><b>2.2. M\u1eb9o b\u1ea5m \u0111\u1ea1o h\u00e0m c\u1ea5p 2 tr\u00ean m\u00e1y t\u00ednh<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">H\u1ea7u h\u1ebft m\u00e1y t\u00ednh c\u1ea7m tay ph\u1ed5 th\u00f4ng kh\u00f4ng \u0111\u01b0\u1ee3c trang b\u1ecb ch\u1ee9c n\u0103ng t\u00ednh tr\u1ef1c ti\u1ebfp \u0111\u1ea1o h\u00e0m c\u1ea5p 2 (f\u201d(x)). Tuy nhi\u00ean, ch\u00fang ta ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng m\u1ed9t m\u1eb9o nh\u1ecf d\u1ef1a tr\u00ean \u0111\u1ecbnh ngh\u0129a \u0111\u1ea1o h\u00e0m \u0111\u1ec3 t\u00ednh gi\u00e1 tr\u1ecb g\u1ea7n \u0111\u00fang.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Thao t\u00e1c tr\u00ean m\u00e1y <\/span><b>Casio fx-580VN X<\/b><span style=\"font-weight: 400;\"> nh\u01b0 sau:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 1:<\/b><span style=\"font-weight: 400;\"> B\u1ea5m <\/span><b>SHIFT<\/b><span style=\"font-weight: 400;\"> + <\/span><b>\u222b\u25a1dx<\/b><span style=\"font-weight: 400;\"> \u0111\u1ec3 g\u1ecdi h\u00e0m t\u00ednh \u0111\u1ea1o h\u00e0m l\u1ea7n th\u1ee9 nh\u1ea5t nh\u01b0 b\u00ecnh th\u01b0\u1eddng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 2:<\/b><span style=\"font-weight: 400;\"> Trong \u00f4 nh\u1eadp h\u00e0m s\u1ed1 f(x), b\u1ea1n kh\u00f4ng nh\u1eadp h\u00e0m s\u1ed1 g\u1ed1c m\u00e0 nh\u1eadp l\u1ea1i c\u00fa ph\u00e1p t\u00ednh \u0111\u1ea1o h\u00e0m m\u1ed9t l\u1ea7n n\u1eefa b\u1eb1ng c\u00e1ch b\u1ea5m <\/span><b>SHIFT<\/b><span style=\"font-weight: 400;\"> + <\/span><b>\u222b\u25a1dx<\/b><span style=\"font-weight: 400;\">. L\u00fac n\u00e0y, m\u00e0n h\u00ecnh s\u1ebd hi\u1ec3n th\u1ecb c\u00fa ph\u00e1p \u0111\u1ea1o h\u00e0m l\u1ed3ng nhau.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 3:<\/b><span style=\"font-weight: 400;\"> Nh\u1eadp h\u00e0m s\u1ed1 f(x) ban \u0111\u1ea7u v\u00e0o c\u00fa ph\u00e1p \u0111\u1ea1o h\u00e0m n\u1eb1m \u1edf b\u00ean trong.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 4:<\/b><span style=\"font-weight: 400;\"> T\u1ea1i v\u1ecb tr\u00ed t\u00ednh \u0111\u1ea1o h\u00e0m c\u1ee7a h\u00e0m b\u00ean trong (bi\u1ec3u th\u1ee9c d\/dx(\u2026)|x=\u2026), b\u1ea1n nh\u1eadp bi\u1ebfn <\/span><b>X<\/b><span style=\"font-weight: 400;\"> (b\u1ea5m <\/span><b>ALPHA<\/b><span style=\"font-weight: 400;\"> + <\/span><b>)<\/b><span style=\"font-weight: 400;\">).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 5:<\/b><span style=\"font-weight: 400;\"> Di chuy\u1ec3n con tr\u1ecf ra c\u00fa ph\u00e1p \u0111\u1ea1o h\u00e0m b\u00ean ngo\u00e0i v\u00e0 nh\u1eadp gi\u00e1 tr\u1ecb x\u2080 m\u00e0 b\u1ea1n c\u1ea7n t\u00ednh \u0111\u1ea1o h\u00e0m c\u1ea5p 2.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u01b0\u1edbc 6:<\/b><span style=\"font-weight: 400;\"> B\u1ea5m <\/span><b>=<\/b><span style=\"font-weight: 400;\"> v\u00e0 ch\u1edd m\u00e1y t\u00ednh x\u1eed l\u00fd trong gi\u00e2y l\u00e1t \u0111\u1ec3 cho ra k\u1ebft qu\u1ea3 g\u1ea7n \u0111\u00fang c\u1ee7a f\u201d(x\u2080).<\/span><\/li>\n<\/ul>\n<h2><b>3. \u1ee8ng d\u1ee5ng b\u1ea5m m\u00e1y t\u00ednh \u0111\u1ea1o h\u00e0m gi\u1ea3i nhanh tr\u1eafc nghi\u1ec7m<\/b><\/h2>\n<h3><b>3.1. T\u00ecm h\u1ec7 s\u1ed1 g\u00f3c c\u1ee7a ti\u1ebfp tuy\u1ebfn<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Theo \u0111\u1ecbnh ngh\u0129a, h\u1ec7 s\u1ed1 g\u00f3c c\u1ee7a ti\u1ebfp tuy\u1ebfn \u0111\u1ed3 th\u1ecb h\u00e0m s\u1ed1 y = f(x) t\u1ea1i \u0111i\u1ec3m c\u00f3 ho\u00e0nh \u0111\u1ed9 x\u2080 ch\u00ednh l\u00e0 gi\u00e1 tr\u1ecb f'(x\u2080). Thay v\u00ec ph\u1ea3i t\u00ednh \u0111\u1ea1o h\u00e0m b\u1eb1ng tay r\u1ed3i thay s\u1ed1, b\u1ea1n ch\u1ec9 c\u1ea7n nh\u1eadp h\u00e0m s\u1ed1 v\u00e0 gi\u00e1 tr\u1ecb x\u2080 v\u00e0o ch\u1ee9c n\u0103ng t\u00ednh \u0111\u1ea1o h\u00e0m c\u1ee7a m\u00e1y t\u00ednh. K\u1ebft qu\u1ea3 nh\u1eadn \u0111\u01b0\u1ee3c s\u1ebd l\u00e0 h\u1ec7 s\u1ed1 g\u00f3c c\u1ea7n t\u00ecm, gi\u00fap b\u1ea1n ch\u1ecdn \u0111\u00e1p \u00e1n m\u1ed9t c\u00e1ch nhanh ch\u00f3ng v\u00e0 ch\u00ednh x\u00e1c.<\/span><\/p>\n<h3><b>3.2. X\u00e9t t\u00ednh \u0111\u01a1n \u0111i\u1ec7u c\u1ee7a h\u00e0m s\u1ed1<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 ki\u1ec3m tra t\u00ednh \u0111\u1ed3ng bi\u1ebfn hay ngh\u1ecbch bi\u1ebfn c\u1ee7a m\u1ed9t h\u00e0m s\u1ed1 tr\u00ean kho\u1ea3ng (a; b), b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn m\u1ed9t gi\u00e1 tr\u1ecb x b\u1ea5t k\u1ef3 thu\u1ed9c kho\u1ea3ng \u0111\u00f3 v\u00e0 t\u00ednh f'(x) b\u1eb1ng m\u00e1y t\u00ednh.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">N\u1ebfu k\u1ebft qu\u1ea3 f'(x) &gt; 0, h\u00e0m s\u1ed1 c\u00f3 xu h\u01b0\u1edbng \u0111\u1ed3ng bi\u1ebfn tr\u00ean kho\u1ea3ng \u0111\u00f3.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">N\u1ebfu k\u1ebft qu\u1ea3 f'(x) &lt; 0, h\u00e0m s\u1ed1 c\u00f3 xu h\u01b0\u1edbng ngh\u1ecbch bi\u1ebfn tr\u00ean kho\u1ea3ng \u0111\u00f3.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">M\u1eb9o n\u00e0y c\u1ef1c k\u1ef3 h\u1eefu \u00edch khi c\u1ea7n lo\u1ea1i tr\u1eeb nhanh c\u00e1c ph\u01b0\u01a1ng \u00e1n sai trong c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m v\u1ec1 t\u00ednh \u0111\u01a1n \u0111i\u1ec7u.<\/span><\/li>\n<\/ul>\n<h3><b>3.3. T\u00ecm nhanh \u0111i\u1ec3m c\u1ef1c tr\u1ecb c\u1ee7a h\u00e0m s\u1ed1<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ch\u1ee9c n\u0103ng <\/span><b>SOLVE<\/b><span style=\"font-weight: 400;\"> (gi\u1ea3i ph\u01b0\u01a1ng tr\u00ecnh) c\u1ee7a m\u00e1y t\u00ednh \u0111\u1ec3 t\u00ecm c\u00e1c nghi\u1ec7m c\u1ee7a ph\u01b0\u01a1ng tr\u00ecnh f'(x) = 0, \u0111\u00e2y ch\u00ednh l\u00e0 c\u00e1c \u0111i\u1ec3m c\u1ef1c tr\u1ecb ti\u1ec1m n\u0103ng. Sau \u0111\u00f3, t\u00ednh gi\u00e1 tr\u1ecb \u0111\u1ea1o h\u00e0m t\u1ea1i c\u00e1c \u0111i\u1ec3m l\u00e2n c\u1eadn nghi\u1ec7m \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh s\u1ef1 \u0111\u1ed5i d\u1ea5u c\u1ee7a \u0111\u1ea1o h\u00e0m, t\u1eeb \u0111\u00f3 k\u1ebft lu\u1eadn \u0111i\u1ec3m \u0111\u00f3 l\u00e0 c\u1ef1c \u0111\u1ea1i hay c\u1ef1c ti\u1ec3u m\u00e0 kh\u00f4ng c\u1ea7n l\u1eadp b\u1ea3ng bi\u1ebfn thi\u00ean ph\u1ee9c t\u1ea1p.<\/span><\/p>\n<h2><b>4. Nh\u1eefng l\u01b0u \u00fd quan tr\u1ecdng khi b\u1ea5m m\u00e1y t\u00ednh \u0111\u1ea1o h\u00e0m<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 t\u00ednh to\u00e1n lu\u00f4n ch\u00ednh x\u00e1c v\u00e0 tr\u00e1nh c\u00e1c l\u1ed7i kh\u00f4ng \u0111\u00e1ng c\u00f3, b\u1ea1n c\u1ea7n ghi nh\u1edb m\u1ed9t s\u1ed1 quy t\u1eafc quan tr\u1ecdng sau \u0111\u00e2y:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Chuy\u1ec3n sang \u0111\u01a1n v\u1ecb Radian khi t\u00ednh \u0111\u1ea1o h\u00e0m h\u00e0m l\u01b0\u1ee3ng gi\u00e1c<\/b><span style=\"font-weight: 400;\">: B\u1eaft bu\u1ed9c chuy\u1ec3n m\u00e1y t\u00ednh sang ch\u1ebf \u0111\u1ed9 <\/span><b>Radian<\/b><span style=\"font-weight: 400;\"> (thao t\u00e1c tr\u00ean m\u00e1y t\u00ednh <\/span><a href=\"https:\/\/tiki.vn\/thuong-hieu\/casio.html\"><span style=\"font-weight: 400;\">Casio<\/span><\/a><span style=\"font-weight: 400;\"> l\u00e0 <\/span><b>SHIFT + MENU<\/b><span style=\"font-weight: 400;\"> -&gt; 2 -&gt; <\/span><b>2 \u2013 Angle Unit<\/b><span style=\"font-weight: 400;\">) khi t\u00ednh \u0111\u1ea1o h\u00e0m c\u00e1c h\u00e0m sin, cos, tan, cot \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c, v\u00e0 lu\u00f4n ki\u1ec3m tra \u0111\u01a1n v\u1ecb g\u00f3c tr\u00ean m\u00e0n h\u00ecnh tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>C\u00e1ch kh\u1eafc ph\u1ee5c l\u1ed7i Math ERROR v\u00e0 Syntax ERROR<\/b><span style=\"font-weight: 400;\">: L\u1ed7i <\/span><b>Math ERROR<\/b><span style=\"font-weight: 400;\"> x\u1ea3y ra khi h\u00e0m s\u1ed1 kh\u00f4ng x\u00e1c \u0111\u1ecbnh t\u1ea1i \u0111i\u1ec3m c\u1ea7n t\u00ednh, c\u1ea7n ki\u1ec3m tra l\u1ea1i t\u1eadp x\u00e1c \u0111\u1ecbnh; trong khi <\/span><b>Syntax ERROR<\/b><span style=\"font-weight: 400;\"> l\u00e0 l\u1ed7i nh\u1eadp sai c\u00fa ph\u00e1p (thi\u1ebfu ngo\u1eb7c, sai bi\u1ebfn), c\u1ea7n r\u00e0 so\u00e1t v\u00e0 s\u1eeda l\u1ea1i bi\u1ec3u th\u1ee9c theo con tr\u1ecf ch\u1ec9 d\u1eabn c\u1ee7a m\u00e1y.<\/span><\/li>\n<\/ul>\n<h2><b>5. B\u1ea3ng so s\u00e1nh nhanh thao t\u00e1c tr\u00ean c\u00e1c d\u00f2ng m\u00e1y ph\u1ed5 bi\u1ebfn<\/b><\/h2>\n<table>\n<tbody>\n<tr>\n<td><b>T\u00ednh n\u0103ng<\/b><\/td>\n<td><b>Casio fx-580VN X<\/b><\/td>\n<td><b>Casio fx-880BTG<\/b><\/td>\n<td><b>Vinacal 680EX Plus<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>Thao t\u00e1c \u0111\u1ea1o h\u00e0m c\u1ea5p 1<\/b><\/td>\n<td><b>SHIFT<\/b><span style=\"font-weight: 400;\"> + <\/span><b>\u222b\u25a1dx<\/b><\/td>\n<td><b>CATALOG<\/b><span style=\"font-weight: 400;\"> -&gt; Func Analysis -&gt; d\/dx<\/span><\/td>\n<td><b>SHIFT<\/b><span style=\"font-weight: 400;\"> + <\/span><b>\u222b(d\/dx)<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>\u01afu \u0111i\u1ec3m<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Thao t\u00e1c nhanh, quen thu\u1ed9c, ph\u1ed5 bi\u1ebfn nh\u1ea5t.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Giao di\u1ec7n Ti\u1ebfng Vi\u1ec7t, tr\u1ef1c quan, d\u1ec5 d\u00f9ng cho ng\u01b0\u1eddi m\u1edbi.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">T\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd nhanh, b\u1ec1n b\u1ec9, thao t\u00e1c t\u01b0\u01a1ng t\u1ef1 Casio 580.<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>\u0110\u1ed1i t\u01b0\u1ee3ng ph\u00f9 h\u1ee3p<\/b><\/td>\n<td><span style=\"font-weight: 400;\">H\u1ecdc sinh THPT, sinh vi\u00ean c\u00e1c kh\u1ed1i ng\u00e0nh.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">H\u1ecdc sinh c\u1ea5p 2, c\u1ea5p 3 l\u00e0m quen v\u1edbi <\/span><a href=\"https:\/\/tiki.vn\/may-tinh-khoa-hoc\/c1922\"><span style=\"font-weight: 400;\">m\u00e1y t\u00ednh khoa h\u1ecdc<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">H\u1ecdc sinh, sinh vi\u00ean, \u0111\u1eb7c bi\u1ec7t l\u00e0 kh\u1ed1i k\u1ef9 thu\u1eadt.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><b>6. Tiki \u2013 An t\u00e2m ch\u1ecdn mua m\u00e1y t\u00ednh c\u1ea7m tay ch\u00ednh h\u00e3ng<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00e1y t\u00ednh ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh, cho k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c v\u00e0 tu\u00e2n th\u1ee7 quy ch\u1ebf thi c\u1ee7a B\u1ed9 Gi\u00e1o d\u1ee5c v\u00e0 \u0110\u00e0o t\u1ea1o, vi\u1ec7c ch\u1ecdn mua s\u1ea3n ph\u1ea9m ch\u00ednh h\u00e3ng l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u. Tiki l\u00e0 \u0111\u1ecba ch\u1ec9 \u0111\u00e1ng tin c\u1eady gi\u00fap b\u1ea1n ho\u00e0n to\u00e0n y\u00ean t\u00e2m khi mua s\u1eafm c\u00e1c d\u1ee5ng c\u1ee5 h\u1ecdc t\u1eadp quan tr\u1ecdng.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>100% h\u00e0ng ch\u00ednh h\u00e3ng:<\/b><span style=\"font-weight: 400;\"> C\u00e1c s\u1ea3n ph\u1ea9m m\u00e1y t\u00ednh c\u1ea7m tay do Tiki Trading ph\u00e2n ph\u1ed1i ho\u1eb7c c\u00e1c nh\u00e0 b\u00e1n uy t\u00edn kh\u00e1c \u0111\u1ec1u c\u00f3 tem ch\u1ed1ng gi\u1ea3, ngu\u1ed3n g\u1ed1c r\u00f5 r\u00e0ng, \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng chu\u1ea9n x\u00e1c v\u00e0 \u0111\u01b0\u1ee3c ph\u00e9p mang v\u00e0o ph\u00f2ng thi.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ch\u00ednh s\u00e1ch \u0111\u1ed5i tr\u1ea3 linh ho\u1ea1t:<\/b><span style=\"font-weight: 400;\"> Tiki h\u1ed7 tr\u1ee3 \u0111\u1ed5i tr\u1ea3 mi\u1ec5n ph\u00ed v\u00e0 \u0111\u00fang h\u1eb9n n\u1ebfu s\u1ea3n ph\u1ea9m c\u00f3 l\u1ed7i t\u1eeb nh\u00e0 s\u1ea3n xu\u1ea5t. \u0110i\u1ec1u n\u00e0y gi\u00fap b\u1ea1n kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp v\u00e0 \u00f4n luy\u1ec7n quan tr\u1ecdng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>M\u1edf h\u1ed9p ki\u1ec3m tra khi nh\u1eadn h\u00e0ng:<\/b><span style=\"font-weight: 400;\"> B\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra s\u1ea3n ph\u1ea9m, tem m\u00e1c, ph\u1ee5 ki\u1ec7n \u0111i k\u00e8m ngay khi nh\u1eadn h\u00e0ng \u0111\u1ec3 ho\u00e0n to\u00e0n an t\u00e2m v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 m\u1eabu m\u00e3 m\u00ecnh \u0111\u00e3 \u0111\u1eb7t.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Giao h\u00e0ng nhanh ch\u00f3ng:<\/b><span style=\"font-weight: 400;\"> V\u1edbi d\u1ecbch v\u1ee5 TikiNOW, chi\u1ebfc m\u00e1y t\u00ednh c\u00f3 th\u1ec3 \u0111\u1ebfn tay b\u1ea1n ch\u1ec9 sau 2 gi\u1edd \u0111\u1eb7t h\u00e0ng, s\u1eb5n s\u00e0ng cho vi\u1ec7c \u00f4n luy\u1ec7n c\u1ea5p t\u1ed1c tr\u01b0\u1edbc c\u00e1c k\u1ef3 thi quan tr\u1ecdng.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Tham kh\u1ea3o th\u00eam nh\u1eefng quy\u1ec3n s\u00e1ch hay t\u1ea1i nh\u00e0 s\u00e1ch <\/span><a href=\"https:\/\/tiki.vn\/nha-sach-tiki\/c8322\"><span style=\"font-weight: 400;\">Tiki<\/span><\/a><span style=\"font-weight: 400;\"> nh\u00e9!<\/span><\/p>\n<h2><b>7. C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/b><\/h2>\n<h3><b>7.1. L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00ednh \u0111\u1ea1o h\u00e0m c\u1ee7a h\u00e0m s\u1ed1 ch\u1ee9a bi\u1ebfn Ans?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">B\u1ea1n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng k\u1ebft qu\u1ea3 c\u1ee7a ph\u00e9p t\u00ednh tr\u01b0\u1edbc \u0111\u00f3, \u0111\u00e3 \u0111\u01b0\u1ee3c m\u00e1y t\u00ednh t\u1ef1 \u0111\u1ed9ng l\u01b0u v\u00e0o bi\u1ebfn <\/span><b>Ans<\/b><span style=\"font-weight: 400;\">, trong bi\u1ec3u th\u1ee9c t\u00ednh \u0111\u1ea1o h\u00e0m. Khi nh\u1eadp h\u00e0m s\u1ed1, b\u1ea1n ch\u1ec9 c\u1ea7n g\u1ecdi bi\u1ebfn n\u00e0y ra b\u1eb1ng c\u00e1ch b\u1ea5m ph\u00edm <\/span><b>Ans<\/b><span style=\"font-weight: 400;\"> (th\u01b0\u1eddng n\u1eb1m g\u1ea7n ph\u00edm =).<\/span><\/p>\n<h3><b>7.2. T\u1ea1i sao m\u00e1y t\u00ednh b\u00e1o l\u1ed7i khi t\u00ednh \u0111\u1ea1o h\u00e0m t\u1ea1i bi\u00ean c\u1ee7a m\u1ed9t kho\u1ea3ng?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">M\u00e1y t\u00ednh c\u1ea7m tay s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p t\u00ednh x\u1ea5p x\u1ec9 \u0111\u1ea1o h\u00e0m d\u1ef1a tr\u00ean c\u00e1c gi\u00e1 tr\u1ecb l\u00e2n c\u1eadn hai ph\u00eda c\u1ee7a m\u1ed9t \u0111i\u1ec3m. T\u1ea1i c\u00e1c \u0111i\u1ec3m bi\u00ean c\u1ee7a t\u1eadp x\u00e1c \u0111\u1ecbnh, \u0111\u1ea1o h\u00e0m m\u1ed9t ph\u00eda c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i nh\u01b0ng \u0111\u1ea1o h\u00e0m hai ph\u00eda th\u00ec kh\u00f4ng. \u0110i\u1ec1u n\u00e0y khi\u1ebfn thu\u1eadt to\u00e1n c\u1ee7a m\u00e1y t\u00ednh kh\u00f4ng th\u1ec3 t\u00ednh to\u00e1n v\u00e0 b\u00e1o l\u1ed7i <\/span><b>Math ERROR<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h3><b>7.3. T\u1ea1i sao k\u1ebft qu\u1ea3 \u0111\u1ea1o h\u00e0m lu\u00f4n l\u00e0 s\u1ed1 th\u1eadp ph\u00e2n?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">M\u00e1y t\u00ednh khoa h\u1ecdc (scientific calculator) \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh s\u1ed1, t\u1ee9c l\u00e0 t\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a m\u1ed9t bi\u1ec3u th\u1ee9c t\u1ea1i m\u1ed9t \u0111i\u1ec3m c\u1ee5 th\u1ec3, v\u00e0 k\u1ebft qu\u1ea3 tr\u1ea3 v\u1ec1 l\u00e0 m\u1ed9t con s\u1ed1 (s\u1ed1 nguy\u00ean ho\u1eb7c s\u1ed1 th\u1eadp ph\u00e2n) ch\u1ee9 kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p to\u00e1n k\u00fd hi\u1ec7u (symbolic calculation) \u0111\u1ec3 t\u00ecm ra bi\u1ec3u th\u1ee9c \u0111\u1ea1o h\u00e0m t\u1ed5ng qu\u00e1t c\u1ee7a m\u1ed9t h\u00e0m s\u1ed1.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">        <div class=\"tiki-product-slider\">\n            <div class='tiki-product-slider-title'>Mua ngay s\u00e1ch v\u1ec1 M\u00e1y t\u00ednh casio gi\u00e1 t\u1ed1t t\u1ea1i Tiki:<\/div>\n            <div class=\"embla\">\n                <div class=\"embla__viewport\">\n                    <div class=\"embla__container\">            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-de-ban-casio-dc-12m-p13379271.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/36\/fc\/c3\/c572f99670cff141ed6240f53bd01e00.jpg\" alt=\"M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio DC-12M\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/12\/e2\/4a\/c5226426ee9429b0050449ae5403c9cf.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio DC-12M\">M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio DC-12M<\/h4>\n                    <div class=\"product-info-price\">\n                        330.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">440.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-25%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/ts\/tka\/a8\/31\/b6\/802e2c99dcce64c67aa2648edb15dd25.png\" alt=\"\" \/>\n                <span>Giao si\u00eau t\u1ed1c 2h<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-de-ban-casio-mc-12m-p13379331.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/41\/b0\/02\/a16cfdceb242f3dc7174d70cddc245b5.jpg\" alt=\"M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio MC-12M\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/12\/e2\/4a\/c5226426ee9429b0050449ae5403c9cf.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio MC-12M\">M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio MC-12M<\/h4>\n                    <div class=\"product-info-price\">\n                        279.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">350.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-20%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/ts\/tka\/a8\/31\/b6\/802e2c99dcce64c67aa2648edb15dd25.png\" alt=\"\" \/>\n                <span>Giao si\u00eau t\u1ed1c 2h<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-dx120b-p23028881.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/b6\/ee\/34\/24bacfbb781568f877c8035f15bbece1.jpg\" alt=\"M\u00e1y t\u00ednh CASIO DX120B\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/12\/e2\/4a\/c5226426ee9429b0050449ae5403c9cf.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y t\u00ednh CASIO DX120B\">M\u00e1y t\u00ednh CASIO DX120B<\/h4>\n                    <div class=\"product-info-price\">\n                        359.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">480.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-25%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/ts\/tka\/a8\/31\/b6\/802e2c99dcce64c67aa2648edb15dd25.png\" alt=\"\" \/>\n                <span>Giao si\u00eau t\u1ed1c 2h<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-mx120b-p23028871.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/8c\/42\/de\/55b9fb922f4cd7ec6d2107b3cc508153.jpg\" alt=\"M\u00e1y t\u00ednh CASIO MX120B\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/12\/e2\/4a\/c5226426ee9429b0050449ae5403c9cf.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y t\u00ednh CASIO MX120B\">M\u00e1y t\u00ednh CASIO MX120B<\/h4>\n                    <div class=\"product-info-price\">\n                        227.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">310.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-27%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/ts\/tka\/a8\/31\/b6\/802e2c99dcce64c67aa2648edb15dd25.png\" alt=\"\" \/>\n                <span>Giao si\u00eau t\u1ed1c 2h<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-dm-1200fm-p53806304.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/42\/16\/b0\/6fe783c354484a4e2cb6fe788ef0f228.jpg\" alt=\"M\u00e1y T\u00ednh Casio DM - 1200FM\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/21\/c9\/ce\/ecf520f4346274799396496b3cbbf7d8.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Casio DM - 1200FM\">M\u00e1y T\u00ednh Casio DM - 1200FM<\/h4>\n                    <div class=\"product-info-price\">\n                        615.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 27\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-lc403tv-p278489393.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/07\/19\/69\/05ad0275e2781cb033bdf64489b0f6a0.jpg\" alt=\"M\u00e1y T\u00ednh CASIO LC403TV\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/c2\/bc\/6d\/ff18cc8968e2bbb43f7ac58efbfafdff.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh CASIO LC403TV\">M\u00e1y T\u00ednh CASIO LC403TV<\/h4>\n                    <div class=\"product-info-price\">\n                        133.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">180.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-26%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/ts\/tka\/a8\/31\/b6\/802e2c99dcce64c67aa2648edb15dd25.png\" alt=\"\" \/>\n                <span>Giao si\u00eau t\u1ed1c 2h<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-mx12b-p278489385.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/e3\/c9\/17\/8190400f4d418c6e3ca3097e47698cf2.jpg\" alt=\"M\u00e1y T\u00ednh CASIO MX12B\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/c2\/bc\/6d\/ff18cc8968e2bbb43f7ac58efbfafdff.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh CASIO MX12B\">M\u00e1y T\u00ednh CASIO MX12B<\/h4>\n                    <div class=\"product-info-price\">\n                        181.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">220.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-18%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/ts\/tka\/a8\/31\/b6\/802e2c99dcce64c67aa2648edb15dd25.png\" alt=\"\" \/>\n                <span>Giao si\u00eau t\u1ed1c 2h<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-mj120dplus-p278489382.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/ac\/cb\/3b\/8c50ec1dcafda734ab78c61a9644d22f.png\" alt=\"M\u00e1y T\u00ednh CASIO MJ120DPLUS\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/c2\/bc\/6d\/ff18cc8968e2bbb43f7ac58efbfafdff.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh CASIO MJ120DPLUS\">M\u00e1y T\u00ednh CASIO MJ120DPLUS<\/h4>\n                    <div class=\"product-info-price\">\n                        293.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">380.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-23%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/ts\/tka\/a8\/31\/b6\/802e2c99dcce64c67aa2648edb15dd25.png\" alt=\"\" \/>\n                <span>Giao si\u00eau t\u1ed1c 2h<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-js40b-p278489381.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/ca\/d9\/4b\/c57d03b4b5fa118872e6d87d01fba823.png\" alt=\"M\u00e1y T\u00ednh CASIO JS40B\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/c2\/bc\/6d\/ff18cc8968e2bbb43f7ac58efbfafdff.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh CASIO JS40B\">M\u00e1y T\u00ednh CASIO JS40B<\/h4>\n                    <div class=\"product-info-price\">\n                        907.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">1.210.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-25%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/ts\/tka\/a8\/31\/b6\/802e2c99dcce64c67aa2648edb15dd25.png\" alt=\"\" \/>\n                <span>Giao si\u00eau t\u1ed1c 2h<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-ax120b-p278490726.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/8a\/66\/a4\/1b11d8ac338968c7c9377e6cc341e7e4.jpg\" alt=\"M\u00e1y T\u00ednh CASIO AX120B\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/c2\/bc\/6d\/ff18cc8968e2bbb43f7ac58efbfafdff.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh CASIO AX120B\">M\u00e1y T\u00ednh CASIO AX120B<\/h4>\n                    <div class=\"product-info-price\">\n                        336.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">450.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-25%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/ts\/tka\/a8\/31\/b6\/802e2c99dcce64c67aa2648edb15dd25.png\" alt=\"\" \/>\n                <span>Giao si\u00eau t\u1ed1c 2h<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-hl122tv-p23028879.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/3c\/a0\/0d\/4cfdfe3bdf23d41492054a550af17ab0.jpg\" alt=\"M\u00e1y t\u00ednh CASIO HL122TV\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y t\u00ednh CASIO HL122TV\">M\u00e1y t\u00ednh CASIO HL122TV<\/h4>\n                    <div class=\"product-info-price\">\n                        370.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 27\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-js20b-p23028887.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/87\/6c\/04\/c7b25a59e11d7b583f502e191f499a73.jpg\" alt=\"M\u00e1y t\u00ednh CASIO JS20B\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y t\u00ednh CASIO JS20B\">M\u00e1y t\u00ednh CASIO JS20B<\/h4>\n                    <div class=\"product-info-price\">\n                        945.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 27\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-j-120b-p566316.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/media\/catalog\/product\/2\/2\/2269806847037-001.u4083.d20161229.t154611.135973.jpg\" alt=\"M\u00e1y T\u00ednh Casio J-120B\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Casio J-120B\">M\u00e1y T\u00ednh Casio J-120B<\/h4>\n                    <div class=\"product-info-price\">\n                        386.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 27\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-gx-120b-p541179.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/media\/catalog\/product\/7\/7\/7700159716144-002.u2683.d20160912.t135638.425746.jpg\" alt=\"M\u00e1y T\u00ednh Casio GX-120B\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Casio GX-120B\">M\u00e1y T\u00ednh Casio GX-120B<\/h4>\n                    <div class=\"product-info-price\">\n                        495.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 27\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-wm220ms-bu-p23028873.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/04\/3a\/1f\/b532615317770cc24062cd770bdce120.png\" alt=\"M\u00e1y t\u00ednh CASIO WM220MS-BU\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y t\u00ednh CASIO WM220MS-BU\">M\u00e1y t\u00ednh CASIO WM220MS-BU<\/h4>\n                    <div class=\"product-info-price\">\n                        525.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 27\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-df-120fm-pk-p71967767.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/6c\/eb\/36\/703466ea45db909f0f7cfb9a81b330de.jpg\" alt=\"M\u00e1y T\u00ednh CASIO DF-120FM-PK\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh CASIO DF-120FM-PK\">M\u00e1y T\u00ednh CASIO DF-120FM-PK<\/h4>\n                    <div class=\"product-info-price\">\n                        505.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 27\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-fx500ms-p102609307.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/c4\/82\/dc\/57ca3a39a8405a50afc612804cc968f2.png\" alt=\"M\u00e1y T\u00ednh Casio Fx500MS\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Casio Fx500MS\">M\u00e1y T\u00ednh Casio Fx500MS<\/h4>\n                    <div class=\"product-info-price\">\n                        404.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 27\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-dc-12m-pl-p36711111.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/80\/98\/68\/d78fb8d757ca71500675f1d4d6a456fc.jpg\" alt=\"M\u00e1y t\u00ednh CASIO DC-12M (PL)\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y t\u00ednh CASIO DC-12M (PL)\">M\u00e1y t\u00ednh CASIO DC-12M (PL)<\/h4>\n                    <div class=\"product-info-price\">\n                        461.700 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">476.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-3%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 3, 26\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-jw200sc-bk-p50361812.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/3e\/3d\/65\/8339d863d855f389eacfb771df419ac6.jpg\" alt=\"M\u00e1y T\u00ednh Casio JW200SC-BK\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Casio JW200SC-BK\">M\u00e1y T\u00ednh Casio JW200SC-BK<\/h4>\n                    <div class=\"product-info-price\">\n                        819.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>H\u1ebft h\u00e0ng<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-de-ban-casio-dc-mc-12m-best-choice-for-yourshop-p91773862.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/37\/ef\/d5\/626c5785d8143cc5ae929a99bdeb7acb.jpg\" alt=\" M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio DC\/MC-12M Best Choice for YourShop\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\" M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio DC\/MC-12M Best Choice for YourShop\"> M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio DC\/MC-12M Best Choice for YourShop<\/h4>\n                    <div class=\"product-info-price\">\n                        290.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 27\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-de-ban-casio-wd-320mt-p13379390.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/f3\/02\/b3\/6a3e1b7d4cf6daca69942317ec1a1a32.jpg\" alt=\"M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio WD-320MT\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio WD-320MT\">M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio WD-320MT<\/h4>\n                    <div class=\"product-info-price\">\n                        780.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 27\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-de-ban-casio-gx-12b-p13379282.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/f1\/6a\/dd\/a4529bc3172f8da73d3b6cde42e3acb7.jpg\" alt=\"M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio GX-12B\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/c2\/bc\/6d\/ff18cc8968e2bbb43f7ac58efbfafdff.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio GX-12B\">M\u00e1y T\u00ednh \u0110\u1ec3 B\u00e0n Casio GX-12B<\/h4>\n                    <div class=\"product-info-price\">\n                        421.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                                <div class=\"product-info-original-price\">\n                <span><span class=\"product-info-original-price-text\">560.000<\/span> <sup>\u20ab<\/sup><\/span>\n                <span class=\"product-info-original-price-rate\">-25%<\/span>\n            <\/div>\n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 3, 26\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-dx-120b-w-dc-p23405315.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/cf\/b2\/b6\/2b75670ac996d7e5591f79981ba3c4b3.jpg\" alt=\"M\u00e1y t\u00ednh Casio DX-120B-W-DC\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y t\u00ednh Casio DX-120B-W-DC\">M\u00e1y t\u00ednh Casio DX-120B-W-DC<\/h4>\n                    <div class=\"product-info-price\">\n                        389.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 4, 27\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a>            <a class=\"embla__slide\" href=\"https:\/\/tiki.vn\/may-tinh-casio-ms-10f-p100285956.html?utm_source=blog&utm_medium=carousel&utm_campaign=blog_article\">\n                <div class=\"product-image-container\">\n                    <img decoding=\"async\" src=\"https:\/\/salt.tikicdn.com\/cache\/280x280\/ts\/product\/3e\/1d\/6a\/ff097b352d71a30d4402684163280992.jpg\" alt=\"M\u00e1y T\u00ednh Casio MS - 10F\" class=\"img-thumb\" \/>\n                    <img class='product-overlay-image' src='https:\/\/salt.tikicdn.com\/ts\/upload\/f7\/9e\/83\/ab28365ea395893fe5abac88b5103444.png' alt='overlay badge' \/>\n                <\/div>\n                \n                <div class=\"product-info\">\n                    <h4 class=\"product-info-name\"title=\"M\u00e1y T\u00ednh Casio MS - 10F\">M\u00e1y T\u00ednh Casio MS - 10F<\/h4>\n                    <div class=\"product-info-price\">\n                        342.000 <sup>\u20ab<\/sup>\n                    <\/div>\n                    \n                    \n                                <div class=\"product-info-delivery\">\n                <img decoding=\"async\" src=\"\" alt=\"\" \/>\n                <span>Giao th\u1ee9 3, 26\/05<\/span>\n            <\/div>\n                    <button class=\"td_btn td_btn_sm td_outlined_btn product-view-button\">Xem ngay<\/button>\n                <\/div>\n            <\/a><\/div>\n                <\/div>\n                        <button class=\"embla__control embla__prev\"><iconify-icon icon=\"tabler:chevron-left\"><\/iconify-icon><\/button>\n        <button class=\"embla__control embla__next\"><iconify-icon icon=\"tabler:chevron-right\"><\/iconify-icon><\/button>\n            <\/div>\n        <\/div><\/span><\/p>\n<p><b>Xem th\u00eam<\/b><span style=\"font-weight: 400;\">:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/tiki.vn\/blog\/bam-tri-tuyet-doi-may-tinh-casio-580\/\"><span style=\"font-weight: 400;\">B\u1ea5m tr\u1ecb tuy\u1ec7t \u0111\u1ed1i tr\u00ean m\u00e1y t\u00ednh Casio 580: H\u01b0\u1edbng d\u1eabn chi ti\u1ebft nh\u1ea5t<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/tiki.vn\/blog\/nut-phan-tram-tren-may-tinh-casio\/\"><span style=\"font-weight: 400;\">N\u00fat ph\u1ea7n tr\u0103m m\u00e1y t\u00ednh Casio: C\u00e1ch b\u1ea5m, m\u1eb9o v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/tiki.vn\/blog\/cach-gan-gia-tri-tren-may-tinh-casio\/\"><span style=\"font-weight: 400;\">C\u00e1ch g\u00e1n gi\u00e1 tr\u1ecb tr\u00ean m\u00e1y t\u00ednh Casio: H\u01b0\u1edbng d\u1eabn t\u1eeb A \u0111\u1ebfn Z<\/span><\/a><\/li>\n<\/ul>\n<p><i><span style=\"font-weight: 400;\">Th\u00e0nh th\u1ea1o c\u00e1ch b\u1ea5m m\u00e1y t\u00ednh \u0111\u1ea1o h\u00e0m l\u00e0 m\u1ed9t k\u1ef9 n\u0103ng thi\u1ebft y\u1ebfu gi\u00fap h\u1ecdc sinh, sinh vi\u00ean t\u1ed1i \u01b0u h\u00f3a th\u1eddi gian v\u00e0 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 ch\u00ednh x\u00e1c trong c\u00e1c b\u00e0i ki\u1ec3m tra. Vi\u1ec7c luy\u1ec7n t\u1eadp th\u01b0\u1eddng xuy\u00ean v\u1edbi m\u1ed9t chi\u1ebfc m\u00e1y t\u00ednh ch\u00ednh h\u00e3ng, \u0111\u01b0\u1ee3c ph\u00e9p mang v\u00e0o ph\u00f2ng thi nh\u01b0 <\/span><\/i><b><i>Casio fx-580VN X<\/i><\/b><i><span style=\"font-weight: 400;\"> hay <\/span><\/i><b><i>Casio fx-880BTG<\/i><\/b><i><span style=\"font-weight: 400;\"> s\u1ebd gi\u00fap b\u1ea1n t\u1ef1 tin chinh ph\u1ee5c c\u00e1c b\u00e0i to\u00e1n kh\u00f3. \u0110\u1ed3ng th\u1eddi, \u0111\u1eebng qu\u00ean gh\u00e9 ngay website Tiki \u0111\u1ec3 mua m\u00e1y t\u00ednh c\u1ea7m tay ch\u00ednh h\u00e3ng v\u1edbi ch\u1ebf \u0111\u1ed9 b\u1ea3o h\u00e0nh r\u00f5 r\u00e0ng, giao nhanh v\u00e0 m\u1ee9c gi\u00e1 \u01b0u \u0111\u00e3i.<\/span><\/i><\/p>\n","protected":false},"excerpt":{"rendered":"<p>G\u1eb7p kh\u00f3 kh\u0103n khi t\u00ednh \u0111\u1ea1o h\u00e0m b\u1eb1ng tay ho\u1eb7c mu\u1ed1n ki\u1ec3m tra k\u1ebft qu\u1ea3 th\u1eadt nhanh trong gi\u1edd ki\u1ec3m tra? N\u1eafm v\u1eefng th\u1ee7 thu\u1eadt b\u1ea5m m\u00e1y t\u00ednh \u0111\u1ea1o h\u00e0m kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m th\u1eddi gian qu\u00fd gi\u00e1 m\u00e0 c\u00f2n t\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c khi gi\u1ea3i c\u00e1c b\u00e0i to\u00e1n tr\u1eafc nghi\u1ec7m. B\u00e0i vi\u1ebft [&hellip;]<\/p>\n","protected":false},"author":26,"featured_media":104062,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,4],"tags":[],"class_list":{"0":"post-104057","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-review-sach","8":"category-review-san-pham"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v19.7 (Yoast SEO v20.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u00e1ch b\u1ea5m m\u00e1y t\u00ednh \u0111\u1ea1o h\u00e0m Casio v\u00e0 Vinacal chi ti\u1ebft nh\u1ea5t<\/title>\n<meta name=\"description\" content=\"N\u1eafm c\u00e1ch b\u1ea5m m\u00e1y t\u00ednh \u0111\u1ea1o h\u00e0m tr\u00ean Casio fx-580VN X, fx-880BTG v\u00e0 Vinacal 680EX Plus \u0111\u1ec3 ti\u1ebft ki\u1ec7m th\u1eddi gian, t\u0103ng ch\u00ednh x\u00e1c. H\u01b0\u1edbng d\u1eabn c\u1ea5p 1, m\u1eb9o c\u1ea5p 2 v\u00e0 \u1ee9ng d\u1ee5ng. Xem ngay!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tiki.vn\/blog\/cach-bam-may-tinh-dao-ham\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e1ch b\u1ea5m m\u00e1y t\u00ednh \u0111\u1ea1o h\u00e0m Casio v\u00e0 Vinacal chi ti\u1ebft nh\u1ea5t\" \/>\n<meta property=\"og:description\" content=\"N\u1eafm c\u00e1ch b\u1ea5m m\u00e1y t\u00ednh \u0111\u1ea1o h\u00e0m tr\u00ean Casio fx-580VN X, fx-880BTG v\u00e0 Vinacal 680EX Plus \u0111\u1ec3 ti\u1ebft ki\u1ec7m th\u1eddi gian, t\u0103ng ch\u00ednh x\u00e1c. H\u01b0\u1edbng d\u1eabn c\u1ea5p 1, m\u1eb9o c\u1ea5p 2 v\u00e0 \u1ee9ng d\u1ee5ng. 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